MrsSouthy wrote:... Oh, and one more question...(I am also going to ask Larry, but would also like your input)...would it hurt the draft, stove performance, or anything else for that matter if we went from the 6" flue down to 5" pipe to go up the chimney? We could do 5" without dismantling the damper frame or bricks or anything other than the damper itself and I would love to go that route if it would work as well. Ok...GO!
I recently put a Mark I in my fireplace. It has a 6 inch exit pipe which must clear a 4 inch damper gap in a masonry chimney . It was suggested here that we "field modify" the black pipe by squishing it to fit through the gap. That's what we did and I can't see any negative effects to the draft. I can't tell you what the actual draft is because I don't have the manometer installed yet but I barely have to open the air control valve to get the stove's temperature to 500*.
We put the black pipe together on the floor, squished them and then slid them up through the chimney piece by piece until the pipe extended 8 feet up the chimney. We connected each segment of pipe with 3 screws. The pipe is wedged in there very tightly. As I said I don't see any ill effects to the draft by changing the shape of the pipe.
I don't have a lot of black pipe on which I could install a barro but I definitely could benefit from one. It's my opinion that you probably would probably benefit from one, too. In my case it would smooth out the draft and give me a more manageable burn. Without the barro I find I have to watch the stove more closely because the draft's pull is jumping around. Times like last night when a low pressure zone was moving in I was adjusting the Air Intake valve pretty much hourly. The draft was pulling that much stronger. That's a waste of coal and heat.
This summer I'm going to add a barro after the T on the black pipe. I didn't initially because 1) the length of black pipe I have and 2) I didn't think I could read it or adjust it because of it's location. I've since learned I can actually get back behind the stove if I let the fire cool off to 100* so those issues are gone. Adding the barro will provide a more even burn and I won't have to keep an eye on it.
Good luck, you are going to love the heat. Lisa